<script setup lang="ts">
// vue 新特性
defineOptions({
  name: 'login'
})
import { onUnmounted, ref } from 'vue'
import { mobileRules, passwordRules, codeRules } from '@/utils/rules'
import { showSuccessToast, showToast, type FormInstance } from 'vant'
import { loginByPassword, sendMobileCode, loginByMobile } from '@/services/user'
import { useUserStore } from '@/stores'
import { useRoute, useRouter } from 'vue-router'
// 密码登录和验证码状态切换
const show = ref(false)
const mobile = ref('13211112222')
const password = ref('')
// 同意勾选
const agree = ref(false)
const store = useUserStore()
const router = useRouter()
const route = useRoute()
//  登录-- 同时支持密码登录  和短信登录
const login = async () => {
  // 当表单校验成功后触发 submit 时候触发login 函数
  if (!agree.value) return showToast('请同意勾选')
  // 同时支持密码登录  和短信登录 通过 isPass 来判断区分
  const res = isPass.value ? await loginByPassword(mobile.value, password.value) : await loginByMobile(mobile.value, code.value)
  store.setUser(res.data)
  router.replace((route.query.returnUrl as string) || '/user')

  showSuccessToast('登录成功')
}

// 短信登录界面切换 、
const isPass = ref(true)
const code = ref('')

// 发送验证码逻辑------
// 发送验证码判断是否正在倒计时 校验输入框 调用短信接口
const time = ref(0)
const form = ref<FormInstance | null>(null)
let timerid: number | undefined = undefined
const send = async () => {
  if (time.value > 0) return
  // 验证不通过报错，阻止程序继续执行，成功发送接口 倒计时，
  await form.value?.validate('mobile')
  await sendMobileCode(mobile.value, 'login')
  time.value = 60
  // 开启倒计时
  if (timerid) clearInterval(timerid)
  timerid = setInterval(() => {
    time.value--
    if (time.value <= 0) clearInterval(timerid)
  }, 1000)
}

onUnmounted(() => {
  clearInterval(timerid)
})
</script>

<template>
  <div class="login-page">
    <cp-nav-bar right-text="注册" @click-right="$router.push('/register')"></cp-nav-bar>
    <div class="login-head">
      <h3>{{ isPass ? '密码登录' : '短信验证码登录' }}</h3>
      <a href="javascript:;" @click="isPass = !isPass">
        <span>{{ isPass ? '短信验证码登录' : '密码登录' }}</span>
        <van-icon name="arrow"></van-icon>
      </a>
    </div>
    <van-form autocomplete="off" @submit="login" ref="form">
      <van-field name="mobile" v-model="mobile" :rules="mobileRules" placeholder="请输入手机号" type="text"></van-field>
      <van-field v-if="isPass" v-model="password" :rules="passwordRules" placeholder="请输入密码"
        :type="show ? 'text' : 'password'">
        <template #button>
          <cp-icon @click="show = !show" :name="`login-eye-${show ? 'on' : 'off'}`"></cp-icon>
        </template>
      </van-field>
      <van-field v-else v-model="code" :rules="codeRules" placeholder="短信验证码">
        <template #button>
          <span class="btn-send" :class="{ active: time > 0 }" @click="send">{{ time > 0 ? ` ${time}s后发送验证码` : '发送验证码'
          }}</span>
        </template>
      </van-field>
      <div class="cp-cell">
        <van-checkbox v-model="agree">
          <span>我已同意</span>
          <a href="javascript:;">用户协议</a>
          <span>及</span>
          <a href="javascript:;">隐私条款</a>
        </van-checkbox>
      </div>
      <div class="cp-cell">
        <van-button native-type="submit" block round type="primary">登 录</van-button>
      </div>
      <div class="cp-cell">
        <a href="javascript:;">忘记密码？</a>
      </div>
    </van-form>
    <div class="login-other">
      <van-divider>第三方登录</van-divider>
      <div class="icon">
        <img src="@/assets/qq.svg" alt="" />
      </div>
    </div>
  </div>
</template>

<style lang="scss" scoped>
.login {
  &-page {
    padding-top: 46px;
  }

  &-head {
    padding: 30px 30px 50px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    line-height: 1;

    h3 {
      font-weight: normal;
      font-size: 24px;
    }

    a {
      font-size: 15px;
    }
  }

  &-other {
    margin-top: 60px;
    padding: 0 30px;

    .icon {
      display: flex;
      justify-content: center;

      img {
        width: 36px;
        height: 36px;
        padding: 4px;
      }
    }
  }
}

.van-form {
  padding: 0 14px;

  .cp-cell {
    height: 52px;
    line-height: 24px;
    padding: 14px 16px;
    box-sizing: border-box;
    display: flex;
    align-items: center;

    .van-checkbox {
      a {
        color: var(--cp-primary);
        padding: 0 5px;
      }
    }
  }

  .btn-send {
    color: var(--cp-primary);

    &.active {
      color: rgba(22, 194, 163, 0.5);
    }
  }
}
</style>
